Mostly by making changes in your diet, controlling your weight and of course, by not smoking. visit prevent 50 dot org and get a free 30 day planner filled with tips, recipes, and more. more and more people are in a chevy for the first time. now you can too during the chevy 4th of july sales event. now through july 9, get 10 to 20 percent below msrp on your favorite chevy models when you finance with gm financial. that's over ten thousand dollars on this silverado ltz. this 4th of july, discover why chevy is the most awarded and fastest growing brand the last four years overall. find new roads...